redhead turns into evil mermaid. its an animated film

When Sosuke, a young boy who lives on a clifftop overlooking the sea, rescues a stranded goldfish named Ponyo, he discovers more than he bargained for. Ponyo is a curious, energetic young creature who yearns to be human, but even as she causes chaos around the house, her father, a powerful sorcerer, schemes to return Ponyo to the sea.

Doctor Gia searches for the meaning in life through extraordinary events in the ER where he works.

Mermaid horror movie.

In this "half-fish" out-of-water animated adventure, a mermaid princess makes a bargain with a sea witch to become human.

Ferdig's dream of catching a mermaid and making her his wife finally comes true. Problem is, she's slightly different from other mermaids...

When a marine biologist investigates mysterious deadly attacks on fishermen in an Oregon coastal town, he discovers the culprit is a mermaid who must find a mate to breed with before returning to the sea.

Two carnies (Sewell and Gugino) abduct a mermaid in Ireland, circa 1900, and decide to transport her to America. As their ship loses its way and heads towards the mythical Forbidden Islands, the mermaid begins to display its deadly side.

The lives of teenagers Emma, Cleo and Rikki are forever changed when a magical, forbidden island gives them the power to turn into mermaids.

The adventures of a kind-hearted mermaid who saves a captain's daughter from the stormy ocean, despite the Sea-God's warning not to intervene in the affairs of mortals. However when the captain needs her help again, the mermaid princess must choose between following the laws of the ocean and saving her new human friends from a band of pirates and a dangerous island giant.

An overprotective father and his feisty 12-year-old daughter, who take in a mysterious young woman who washes ashore on the bank of a local river. The father-daughter duo’s lives are forever changed by the arrival of this stranger and by the ruthless drug lord who will stop at nothing to possess her.